If `R={(x ,\ y): x+2y=8}` is a relation on `N` , then write the range of `R` .

Answer

range of R is `{1,2,3}`.

Explanation

The given relation on N is ` R=[(x, y): x+2 y=8]`.

now , due to given restriction we just need to check till x=7 or y=3.


But its easy to insert y

as y has only 3 values to check


For `y=3 ,x=2`

For `y=2 ,x=4`

For `y=1 ,x=6`


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